經濟部智慧財產局員工消費合作社印製 A7 _ B7 五、發明說明（1 ) 技術領域 本發明係有關於傳動鑽及其所用螺釘，尤有關於可將形 成於螺釘頭部作為鑽頭嵌合溝之十字溝與配合此溝之傳動 鑽緊密嵌合。平常可藉由適當杻矩傳輸，迅速且確簧達成 螺訂安裝及卸下之傳動鑽，Μ及與適用於此傳動鑽之螺釕 組合者。 背景技術 一般嫘釘與傳動鑽之組合已知先前有如第13圖至16圖所 示構成者。亦即，第13及14圖顯示具有習知十字溝之螺釕 ，又第15圖顯示此十字溝螺釘用傳動鑽，而且，第16圖顯 示前述螺釘與傳動鑽嵌合狀態。 惟，第13圖所示習知螺釘10於其螺釘頭部10a設有十字 溝12。此十字溝12由自各個端緣部指向螺釘頸部10b之中 心部，伸延形成各個固定傾斜溝部1 2a，於其底部形成緩 緩傾斜大致圓維底面14之構造構成。且，參考符號13標示 形成於各個鄰接十字溝1 2之間之推拔側壁部。亦即，於此 推拔側壁部13與後述傳動鑽之刃部抵接銜合。又，配置成 ，於前逑各傾斜溝部12a之鄰接角隅部分別形成自圓維底 面〗4之位置伸延至螺釘頭部10a之十字溝12開口緣部之推 拔結合面1 7 a，1 7 b，後逑傳動鑽之刃部一部份亦與此等推 拔結合面1 7 a 7 b抵接銜合。 另一方面，第15圖所示習知傳動鑽20配置成*具備各個 嵌合於前述螺釘10之十字溝12之刃部22，同時，形成各個 伸延之伸長刃部22a，其與自前述十字溝12之端緣部指向 紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ~ 4 - -------1!'裝--------訂---------線 (請先閱讀背面之注r事項t寫本頁) 經濟部智慧財產局員工消費合作社印製 A7 _ B7_ 五、發明說明（2 ) 螺钉頸部10b之中心部伸延形成之傾斜溝部12a之形狀配合 。且，參考符號23標示前述各刃部22或伸長刃部22a之二 側面上所形成之推拔側壁部。亦即，此推拔側壁部23與形 成於前述螺钉10之十字溝〗2之推拔側壁部13乃抵接銜合。 根據如此構成之習知螺釘及傳動鑽之組合，如第16圖所 示，若螺釘10與傳動鑽20嵌合，傳動鑽20之各刃部22及伸 長刃部223即如前述，嵌入各個十字溝12之傾斜溝部12a， 前述各刃部22及伸長刃部22a之側壁部23與螺釘10之十字 溝12之推拔側壁部]3抵接，旋轉傳動鑽20，藉此可對螺釘 10進行預定扭矩傳輸。亦即，可於必要之螺釘安裝對象物 進行嫘釭之安装、卸下。 惟，根據前述構造之習知螺釘10及傳動鑽20之組合，如 第16圖所示，螺钉頭部1〇3之十字溝12自此端緣部指向螺 釘頸部10b之中心部形成固定傾斜溝部12a，對應其一之傳 動鑽20使此伸長刃部22a之稜線部份配合前述傾斜溝部12a 之形狀而嵌合於前述十字溝12，且此伸長刃部22a之稜線 部份自其前端指向後方漸次變寬。進一步，由於形成在傳 動鑽20之各刃部22之推拔側壁部23亦與形成在螺钉10之十 字溝12之推拔側壁部13抵接銜合，故若朝預定方向旋轉前 述傳動鑽20，前述傳動鑽20與十字溝12之接觸狀態即全面 成所謂的推拔接觸，故而，傳動鑽20前端會發生沿前述十 字溝12之傾斜溝部12a之傾斜面向外飛出（第/6圖中箭頭所 示）之所謂脫哨現象。 尤其是，如第14圖所示，習知螺釘之十字溝形狀由於 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） _ 5 - -----------裝 —--訂-----I---線 (請先閱讀背面之注約事項δ寫本頁) 經濟部智慧財產局員工消費合作社印製 A7 _B7 五、發明說明（3 ) 作成易於與傳動鑽20前端嵌合，故各個十字溝12之溝寬作 成較傳動鑽20之伸長刃部之梭線部份寬大，另一方面，鄰 接十字溝12、12間分界部份或角隅部所形成之推拔側壁部 1 3及推拔結合面1 7 a、1 7 b之面積較小。因此，於前述傳動 鑽20旋轉操作中，在前述推拔側壁部13及推拔结合面17a 、17b上承受極大應力，螺固阻抗極大情形下，前述推拔 側壁部13及推拔結合面〗7a、17b會如第14圖中斜線部15所 示逐漸破損。因此，若此破損部（斜線部15)擴大，前述傳 動鑽20之脫嚙現象即會頻頻發生，終至螺固作業變得不可 能0 自此観點視之，為了防止前述傳動鑽20之脫嚙現象，於 傳動鑽20旋轉之際，有必要施加將此螺訂溝部12a強力壓 緊之推力。惟，在螺訂安裝對象物為金臛等剛性體情形下 固然沒問題，而在精密部件等情形下，卻有此等對象物會 損傷或破損的缺點。 又，前述脫嚙規象發生會加速鑽頭前端部亦即刃部22及 伸長刃部22a的磨損，由於此磨損，故會進一步肋長前述 脫嚙規象發生，结果亦會增大螺釘溝之破損。 進一步藉由對前述傳動鑽施加過大推力，固然可防止前 逑脫嚙現象，惟，相反地，正確杻矩無法傳至螺釘，加諸 傳動鑽20之推力大小因操作者而異，結果會有螺釘之螺固 扭矩發生誤差之困難點。 復且，在攻絲螺訂情形下，有於對合成樹脂等對象物進 行螺釘螺固之際，螺訂之旋轉摩擦加上推力所造成之摩擦 紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -Q - -------------裝--------訂--------•線 (請先閲讀背面之注'意事項Ϊ寫本頁) 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（4 ) 會使對象物發生高熱，降低對象物之螺釘安裝部份之硬度 *而發生螺釘鬆脫或對象物破損等困難點。 另一方面，在手動螺固螺釘情形下，會有一面將傳動箱 20充份壓緊於螺釘一面旋轉之操作造成操作者費力並使其 疲勞之困難點。 又，根據前述習知螺钉10及傳動鑽20之組合，在使用手 動工具或電動工具進行螺钉安裝情形下，於鑽頭前端部對 螺釘溝嵌合之際，會有維持螺釕軸與傳動鑽軸同軸之配合 狀態進行螺钉旋轉操作上的困難，因而，在螺釘輸與傳動 鑽軸悔斜情形下，不僅前述脫嚙現象會頻頻發生，螺钉溝亦 會經常破損。 甚而，即使於螺钉卸下作業中，亦容易發生與前述相同 之脫嚙現象K及螺釘破損，於此情形下，無法卸下螺釕， 會發生螺釘安裝對象物之一部份須加Μ破壞之事態。尤其 是，在螺釘溝内發生堵塞等情形下*會有前述事態發生益 形顯著之缺點。 自此觀點視之，本申請人前曾於螺釕及傳動鑽之組合中 分別提議螺釘及傳動鑽之組合（特開平8-1 45024號公報、 特開平9-1 77743號公報），其藉由改善螺訂之鑽頭嵌合溝 中溝部之構造，有效防止傳動鑽之脫嚙現象，防止習知 釭之破損，即使螺釘之鑽頭嵌合溝暫時發生破損，仍常 可達成適當且迅速之螺釕螺固作業。 惟，如第12 (b) _所示，特開平8-1 45024號公報有關之 螺釘與傳動鑽組合係於螺訂頭部30a之鑽頭嵌合溝32端緣 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -------------裝--------訂---—II---線 (請先閱讀背面之注"意事項3寫本頁) 經濟部智慧財產局員工消費合作社印製 A7 B7_ 五、發明說明（5 ) 部形成預定深度之垂直端壁部32a，分別自此垂直端壁部 形成水平段部32b，自此水平段部32b指向螺奵頸部30b之 中心部設有各個傾斜溝部32 c，或自前述垂直端部指向螺 釘頸部30b之中心部伸延形成各個推拔或彎曲狀溝部，進 一步於其底部形成大致圓錐底面34，具備與前述水平段部 近傍或彎曲狀溝部銜合之翼部之傳動鑽（參照第12(a)圖） * K及配合此傳動鑽之構造者。 亦即，於第12(b)圖中，形成傳動鑽40之翼部42之直角 緣部42a及伸長翼部42b分別嵌人螺釕30之鑽頭嵌合溝32之 水平段部32b、傾斜溝部32c，前述各翼部42及伸長翼部 42b之側壁部43與螺釘30之鑽頭嵌合溝32之側壁部33抵接 ，藉由旋轉傳動鑽40*可對螺釘3 0進行預定扭矩傳輸。 又，如第12(c)圖所示，特開平9-177743號公報有關之 螺釘及傳動鑽組合係於螺釘頭部30a之鑽頭嵌合溝32端緣 部形成預定深度之垂直端壁部32a，同時自此垂直端壁部 之下緣部指向螺釘頭部之中心部形成***之非平面底部， 自此非平面底部之***部指向螺釘頸部之中心部形成各個 傾斜溝部32c，同時於其底部形成大致圓錐底面，具備與 前述相同構造之刃部之傳動鑽（參照第12(a)圖），配合此 傳動鑽而構成者。 亦即，於第12(c)圖中，形成傳動鑽40之扁平刃部42之 水平面部42a及突起42b分別嵌入螺钉30之鑽頭嵌合溝32之 非平面底部32b、傾斜溝部32c，前述各刃部42及突起部 42 b之側壁部43與螺釘30之鑽頭嵌合溝32之側壁部33抵接 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 8 -------------裝！----訂.--I--I--線 (請先閱讀背面之注·意事項^#寫本頁) 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（6 ) ，藉由旋轉傳動鑽40，可對螺釘30進行預定扭矩傳輸。 前述各個提議之傳動鑽藉由於螺釘30之鑽頭嵌合溝32形 成水平段部32b或非平面底部32b，可增大傳動鑽40之翼部 42或扁平刃部42之側壁部43與鑽頭嵌合溝32之側壁部33之 抵接面積，同時使螺釘30之鑽頭嵌合溝32之傾斜溝部32c 與傳動鑽40之伸長翼部42b或突起42b抵接之推拔接觸面積 成為部份且極小，故可確實防止習知螺钉及傳動鑽組合所 發生之脫嚙現象。 惟，即使是前述提議之螺钉及傳動鑽組合，仍非可充份 滿足傳動鑽前端部更圓滑且更快速與形成於螺釘頭部之鑽 頭嵌合溝嵌合者。 亦即，經察，於先前提議之傳動鑽40之構造中，與前述 鑽頭嵌合溝32前端緣部所形成之垂直端壁部32a銜合而成 大致直角延伸之水平面部42a所構成之扁平刃部42在前述 傳動鑽一面旋轉而與形成於螺釕30頭部之鑽頭嵌合溝32嵌 合之際，前述扁平刃部42前端會滑接擦過螺釘頭部表面， 損傷到其表面。 又，即使在前述傳動鑽40前端與螺釘30a之鑽頭嵌合溝 32嵌合情形下，亦會發生脫嚙現象。亦即*於第12(a)圖 所示傳動鑽及第1 2 (b)圖所示螺釘之組合中，在螺訂量產 化時，於自螺釕頭部32a之鑽頭嵌合溝32端緣部所形成預 定深度之垂直端壁部成直角伸延之水平段部32b不適當形 成情形下，會有因例如鑽頭嵌合溝32衡壓加工造成之衝孔 頭（header punch)磨損Μ致於前述垂直端壁32a與水平段 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 9 -------------裝--------訂---------線 (請先閲讀背面之注意事項3寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） A7 B7_ 五、發明說明（7 ) 部32b之直角交叉部***的情形發生。於此情形下，前述 傳動鑽40前端無法與螺釘頭部30a之鑽頭嵌合溝32充分嵌 合，而成不穩定嵌合狀態，顯然，在傳動鑽40旋轉操作中 ，會有脫嚙現象發生的危險。 另一方面，於第12(a)圖所示傳動鑽及第12(c)圖所示螺 釘之組合中，取代前述水平段部3 2 b，將鑽頭嵌合溝3 2作 成非平面底部32b。由於設定成較深尺寸*故即使可遴免 前述脫唯現象發生，亦因鏍奵頸部30b之強度低下，因而 ，顯然有在傳動鑽40進行螺固操作之際螺釘頸部30a擰斷 的危險。 就此，本發明人幾經精心研究及試驗结果，發現，由配 合螺釘之傳動鑽之基本構造構成，而此螺钉係於螺钉頭部 之鑽頭嵌合溝端緣部形成預定深度之大致垂直端壁部，同 時自此垂直端壁部之下緣部指向頸部之中心部形成大致平 面底部，進一步於此中心部形成圓維底面者，於此傳動鑽 之前端部形成扁平刃部，其形成沿螺訂頭之鑽頭嵌合溝之 垂直端壁部嵌入之大致垂直端緣部，同時，於此扁平刃部 前端部形成圓錐狀突起，其具有相對於水平面大致成1° 〜45°之傾斜角度，較佳者成25°〜35°之傾斜角度，藉 此，在一面旋轉傳動鑽一面與螺訂頭部所形成之鑽頭嵌合 溝嵌合之際，於前逑扁平刃部前端滑接擦過螺釘頭部表面 情形下，其表面全無損傷，且成與螺釘嵌合狀態，即使於 傳動鑽旋轉操作中，亦可確實防止脫«現象。 另一方面，復發現，配合前述傳動鑽之螺釘於螺钉頭部 -10 - -------------裳 --------訂----線 (請先閱讀背面之本意事項^寫本頁) A7 B7 五、發明說明（8 經濟部智慧財產局員工消費合作社印製 之鑽頭嵌 此垂直端 心部形成 成前述鑽 向外側成 壁部開口 ，於傳動 溝之各側 成螺釘與 又，尤 之嵌合溝 延形成各 述鑽頭嵌 凹入成截 此垂直面 異物等推 ，擴大其 可圓滑完 因此， 其可防止 確實防止 且迅速之 發明概要 合溝端 壁部之 傾斜溝 頭嵌合 大致逐 角度作 鑌之刃 壁部抵 傳動鑽 其發現 端緣部 個傾斜 合溝端 面大致 凹入之 入前述 朋端自 成螺釘 本發明 滑接擦 其與螺 螺固作 緣部形成預定深度 下緣部形成段部， 部，進一步於其中 溝之溝寬自螺钉頭 漸展寬之溝，將鄰 成較直 部與螺 接時， 之適當 ，配合 設有段 溝部， 緣部形 r < J 部份平 空隙部 由度， 之螺固 目的在 過螺訂 釘嵌合 業，顯 角小若干之 釘之形成逐 刃部與溝間 嵌合，亦可 前述傳動鑽 郜，自此段 於其底部形 成各個亙預 狀之壁部， 常存在有空 而除去，同 常可達成其 或卸下作業 之大致垂直端壁部，於 同時指向螺奵頸部之中 心部形成圓維底面，形 部之中心部指向半徑方 接之前述各溝之對向側 銳角，藉由使用此螺釘 漸展寬狀溝之鑽頭嵌合 之鏠隙變成極小，可達 確實防止脫嚙現象。 之螺訂分別於螺釘頭部 部指向螺釕頸部中心伸 成大致圓錐底面，於前 定深度自垂直面向内側 藉由使用此螺釘，便自 隙部，藉此，將塵埃、 時，於傳動鑽嵌合之際 與刃部前端適當嵌合， 於提供一種傳動鑽及螺釘之組合， 造成之損傷，同時，可 嚙現象，常可達成適當 效率。 頸部表面所 狀態中之脫 著增進作業 為達成前述目的，本發明有關之傳動鑽係與螺钉配合而 私紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 11 I I 背 面 之 會 h 頁 訂 ▲ 經濟部智慧財產局員工消費合作社印製 A7 _B7 五、發明說明（9 ) 此螺釘於螺釘頭部之鑽頭嵌合溝端緣部形成預定深度之大 致垂直端壁部，同時自此垂直端壁部之下緣部指向螺訂頸 部之中心部形成大致平面底部，進一步於其中心部形成圓 錐底面，特徵在於， 於前端部具備扁平刃部，其形成有沿螺釘頭部之鑽頭嵌 合溝之垂直端壁部嵌入之大致垂直端緣部，於此扁平刃部 前端面形成相對於水平面具有大致1°〜45°傾斜角度之 圓錐狀突起部。 於此情形下，前逑扁平刃部前端面之圓錐狀突起部可將 其圓錐面作成相對水平面成25°〜35°之傾斜角度。 又，前述扁平刃部前端面之圓維狀突起部可將其圓維面 作成單一或多段推拔面。 前述扁平刃部前端面之圓維狀突起部進一步可將其圓維 面作成截面凸面狀或凹面狀。 另一方面，對應於螺釘之鑽頭嵌合溝自螺钉頭部之中心 部指向半徑方向外側作成溝寬大致逐漸展寬之溝，將前述 扁平刃部前端之二側壁部作成與其配合而成逐漸展寬之形 狀。 而且，可於至少一前述扁平刃部設有自其前端面沿鑽頭 軸向伸延必要長度之切入部。 另一方面，配合本發明傳動鑽之螺釘之特徵在於，於螺 釕頭部之鑽頭嵌合溝端緣部分別形成段部*自此段部指向 螺釘頸部之中心部伸延形成各個傾斜溝部，於其底部形成 大致圓維底面，於前述鑽頭嵌合溝端緣部形成各個亙預定 紙張尺度適用中國國家標準（CNS)A4規格（210 x 297公釐） - 1 2 - ---------------------訂--------- (請先閲讀背面之¾意事項^^寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（2】〇χ 297公釐） A7 B7_ 五、發明說明（l〇 ) 深度自垂直面向內側凹入之壁部。 於此情形下，形成於前逑鑽頭嵌合溝端緣部之壁部可作 成截面大致^ <」狀。 又，前述鑽頭嵌合溝可配置成，自螺钉頭部之中心部指 向半徑方向外側形成溝寬大致逐漸展寬之溝，使鄰接之前 述各溝對向之側壁部開口角度成較直角小若干之銳角。 進一步，可使用K下螺钉來作為配合本發明傳動鑽之螺 釕，其於螺釘頭部設有由十字溝構成之鑽頭嵌合溝，形成 與此鑽頭嵌合溝交叉之一直線溝，供十字傳動鑽之刃部嵌 入配合，形成另一直線溝，供一字傳動鑽之刃部嵌入配合 ，於前述一直線溝端緣部形成預定深度之大致垂直端壁部 ，同時於前述垂直端壁部形成亙預定深度自垂直面向内側 凹入成截面大致為「<」形狀之壁部。 而且，本發明特徵在於，前述構造所構成之傳動鑽於使 用之際與Μ下螺釘組合，此螺釘於螺釘頭部之鑽頭嵌合溝 端緣部形成預定深度之大致垂直端壁部，於此垂直端壁部 之下緣部形成段部，同時指向螺訂頸部之中心部形成傾斜 溝部，進一步於其中心部形成圓錐底面，自螺釘頭部之中 心部指向半徑方向外側形成前逑鑽頭嵌合溝之溝寛大致逐 漸展寬形狀之溝，使鄰接之前述各溝之對向側壁開口角度 成較直角小若干之銳角。 又，本發明特徵在於其與Μ下螺釕組合，此螺釘自螺釘 頭部之鑽頭嵌合溝端部之下緣部指向螺釘頸部之中心部形 成各個水平底部或傾斜溝部，同時於其中心部形成圓錐底 ~ 13 - -------------裝--------訂---- -- 線 (請先閱讀背面之注'r事項寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用令國國家標準（CNS)A4規格（210 X 297公釐〉 A7 B7_ 五、發明說明（u) 面，於前述鑽頭嵌合溝之端緣部形成各個亙預定深度自垂 直面向内側凹入之壁部。 本發明進一步特徵在於其與K下正負螺釘組合，此螺釘 於螺钉頭部設有由十字溝構成之鑽頭嵌合溝，形成與此鑽 頭嵌合溝交叉之一直線溝，供十字傳動鑽之刃部嵌入配合 ，同時，形成另一直線溝，供一字傳動鑽之刃部嵌入配合 ，於前述一直嬢溝之端緣部形成預定深度之大致垂直端壁 部0 於此情形下，前述正負（十、一字）螺釘可配置成，分別 地，於鑽頭嵌合溝之一直線溝成大致逐漸展寬之溝，於另 一直線溝内形成其溝寬大致成逐漸展寬狀之溝，傳動鑽之 刃部相對於前述逐漸展寛狀溝之各側壁部具有有均等鏠Pim 時與其抵接。 圖式之簡單說明 第1圖係顯示本發明一傳動鑽實施例之要部放大側視圖。 第2圖係第1圖所示傳動鑽之要部放大側面斜視圖。 第3圖係第1圖所示傳動鑽之放大底視圖。 第4(a)〜（d)圖係顯示本發明傳動鑽前端部各個變形例 之概略側面說明圖。 第5圖係顯示本發明傳動鑽之又另一變形例者，（a)係要 部放大側視圖，（b)係放大底視圖。 第6圖係顗示可適用於本發明傳動鑽之一螺钉構成例者 ，（a)係螺釘頭部之要部放大剖面側視圖，（b)係螺釘頭部 之放大平面圖。 -14 - -------------裝--------訂---------線 (請先閱讀背面之注•意事項S寫本頁) 經濟部智慧財產局員工消費合作社印製 κι __ Β7 五、發明說明（12 ) 第7圖係顯示本發明傳動鑽對第6圖所示螺釘嵌合狀態之 要部放大剖面側視圖。 第8圖係顯示可較佳地適用於本發明傳動鑽之另一螺釕 構造例者，（a)係螺釘頭部之放大平面圖，（b)係顯示傳動 鑽嵌合狀態之嫘奵頭部之要部放大剖視平面圖。 第9圖係可較佳地適用於本發明傳動鑽之又另一螺釘構 造例者* (a )係螺釘頭部之要部放大剖面側視圖，（b )係螺 釘頭部之放大平面圖，（c)係顯示傳動鑽之嵌合狀態之螺 釘頭部之要部放大剖面平面圖。 第1 0圖係可適用本發明傳動鑽之正負螺釘之各個構造例 ，（a)係顯示其一構造例之正負螺釘之螺釘頭部之放大平 面圖，（b )係顯示其變形例之正負螺奵之螺訂頭部之放大 平面圖。 第11圖係顯示第1 0圖所示變螺釘之變形例者，U )係螺 釕頭部之放大平面圖，（b)係螺釘頭部之要部放大剖面側 視圖。 第1 2圖係顯示習知提議之螺钉及配合此螺釕之傳動鑽之 構造者，（a)係傳動鑽之要部放大側視圖，（b)係顯示習知 提議之一螺釘構造例與傳動鑽嵌合狀態之要部放大剖面側 視圖，（c)係顯示習知提議之另一螺钉構造例與傳動鑽嵌 合狀態之要部放大剖面側視圖。 第1 3圖係習知一般十字溝螺钉之要部剖面側視圖。 第14圖係第13圖所示十字溝螺釘之要部剖面側視圖。 第1 5圖係習知一般十字溝螺釘用傳動鑽之要部側視圖。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 一 1 5 _ *- -------------裝·-------訂--I--I---線 (請先閱讀背面之注*事項3寫本頁) A7 _B7_五、發明說明（13 ) 第16圖係顯示第13圖所示十字溝螺钉與第15圖，所示傳 動鑽结合狀態之要部剖面側視圖。 元件編號之說明 經濟部智慧財產局員工消費合作社印製 厶：側壁部開口角度 Θ :傾斜角度 G :空隙部 T1 :側壁部 T2 :側壁部 T3 :側壁部 T4 :側壁部 1 0 :螺釕 10a :螺訂頭部 1 0 b :螺訂頸部 12 :十字溝 1 2 a :傾斜溝部 1 3 :推拔側壁部 14 :圓維底面 1 5 :斜線部 1 7 a :推拔结合面 1 7 b :推拔結合面 2 0 :傳動鑽 22 :刃部 2 2 a :伸長刃部 2 3 :推拔側壁部 *--------------裝--------訂---------線 (請先閱讀背面之注'意事項3寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 16 五、發明說明（14 ) A7 B7 經濟部智慧財產局員工消費合作社印製 30 :螺釘 30A :十字螺釕 30a :螺釕頭部 30b :螺釘頸部 31a :直線溝 31b :直線溝 32 :鑽頭嵌合溝 32a :垂直端壁部 32a '：下緣部 32aa :壁部 32b :水平段部（第12 (b)圖） 3 2 b :非平面底部（第1 2 ( c )圖） 3 2 b ':段部 32c :傾斜溝部 33 :側壁部 33a :溝 33a'：溝 33b :溝 33b'：溝 34 :圓錐底面 34c :圓錐底面 35a :垂直端壁部 37a :推拔結合面 3 7 b :推拔結合面 I -----illl — 1— ^illn — (請先閱讀背面之注_意事項§寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 17 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（15 ) 40 :傳動鑽 42 :翼部（第12 (b)圖） 42:扁平刃部（第12(c)圖） 42a :直角緣部（第12 (b)圓） 42a:水平面部（第12(c)圖） 4 2 b :伸長翼部（第1 2 ( b )圖） 42b :突起（第12 (c)圖） 43 :側壁部 50 :傳動鑽 52 :扁平刃部 52a :刃部切片 53 :垂直側壁部 53a :側壁部 53b :側壁部 54 :圓錐狀突起部 54a :單一推拔面 54b :多段（2段）推拔面 54c :凸面狀 54d :凹面狀 55 :切入部 用Μ實施發明之最佳形態 其次，一面參照附圖，一面就本發明傳動鑽及螺釘組合 之實施例詳加說明如下。 實施例1(傳動鑽構造例1) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 18 *· ------------裝--------訂---------線 (請先閱讀背面之注'意事項择¥寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） A7 B7_ 五、發明說明（1β ) 第1圖至第3圖係顯示本發明一傳動鑽實施例者。亦即* 於第1至3圖中，參考符號50標示本發明傳動鑽，此傳動鑽 50之刃部前端配置成，於第6及7圖所示習知提議之螺釘30 之螺釘頭部30a中心部，與作成十字溝之鑽頭嵌合溝32配 合。 因此，本實施例之傳動鑽50配置成，具備嵌合於前述螺 訂30之鑽頭嵌合溝32，分別相對於形成在此鑽頭嵌合溝32 端緣部之垂直端壁部32a與平面底部32 b與其銜合之各個扁 平刃部52，同時設置圓錐狀突起部54，其具有對應於自前 述鑽頭嵌合溝32之平面底部32b指向嫘釘頸部30b中心部而 形成之傾斜溝部32c，設於前逑扁平刃部52前端面，具有 相對於水平面大致成1°〜45°之傾斜角度0 ，較佳者成 25°〜35°之傾斜角度Θ 。 且，參考符號53標示大致垂直側壁部，可容許若干錐度 形成於前述各扁平刃部52二側面上。因而，此側壁部53與 形成於前述螺钉30之鑽頭嵌合溝32之側壁部33抵接銜合。 由於此驅動面之銜合可獲得充份大的銜合面積，故可有效 防止習知螺釘與傳動鑽組合中所產生的脫哺現象。 第4圖之（a)〜（d)係顯示本發明傳動鑽50之扁平刃部52 前端部所形成圓錐狀突起部54之各涸變肜例者。亦即，第 4圖之（a)係前述突起部54之圓錐面作成單一推拔面5 4a者 。又，第4圖之（b)係前述突起部54之圓維面作成各個傾斜 面度不同之多段（2段）推拔面54b者。進一步，第4圖之（c) 係前述突起部54之圓維面作成截面凸面狀54c者。而且， -19 - -------------裝---I----訂-----I---線 (請先閱讀背面之注·意事項^^寫本頁) 經濟部智慧財產局員工消費合作社印製 A7 _B7_ 五、發明說明（17 ) 第4圈之（d)係前述突起部54之圓錐面作成截面凹面狀54d 者0 實施例2 (傳動鑽構造例2) 第5圖之（a)及（b)偁顯示本發明傳動鑽50之扁平刃部52 之另一實施例者。亦即，於本實豳例中，如第5圖之（a)及 (b)所示，配置成，於扁平刃部52之至少一刃部上設有自 其前端面沿鑽頭軸向伸延必要長度之切入部5 5。 如此，藉由切入部55設於扁平刃部52，形成自傳動鑽50 之軸心部沿半徑方向彈性位移之刃部切H52a，藉此刃部 切片52a之作用，可容易達成後述螺钉30與鑽頭嵌合溝32 嵌合之際的保持。 實施例3 (螺釘構造例1 ) 第6圖之（a)及（b)係顯示本發明傳動鑽50使用上適合之 一螺釘30構造例者。亦即，於第6圖之（a)、（b)中，於螺 釘30之頭部30a上設有各個鑽頭嵌合溝32 ◊且，此鑽頭嵌 合溝32於螺釘頭部30a之中心部設成正交正號（+)狀。惟 ，此鑽頭嵌合溝32於其端緣部形成預定深度之垂直端壁部 32a，自此端壁部32a之下緣部32a’指向螺釘頸部30b之中 心部形成各個傾斜溝部3 2 c，同時，於其中心部形成鍰媛 傾斜之大致圓維底面34c。 且，參考符號33標示形成於各個鄰鑽頭嵌合溝32之間， 作成適當拔出推拔（衝孔頭（header punch)之拔出角度）約 1.5°〜2°程度之大致垂直側壁部。因此，於此側壁部33 與前述本發明傳動鑽50之扁平刃部52之側壁部53抵接銜合。 紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐) _ 20 - -------------裝--------訂---------線 (請先閱讀背面之注·意事項歲寫本頁) A7 _B7五、發明說明（18 ) 溝奵 合螺 嵌至 頭延 鑽伸 述置 前位 於之 4 , 3 釘面 螺底 溝錐 字圓 十自 示成 所形 圖別 14分 第部 於隅 同角 相接 ， 鄰 又之 溝 合 嵌 頭 鑽 中 a 結 拔 推 之 緣 Q 開 部 頭 釘螺， 於 b ϋ 2 8,3 分部 30底 釘面 螺平 之有 成設 構部 30此緣 部如端 頭 之 底 面 平 此 0 2 ϋ 3 7b溝 7.A,口 CO 嵌 37頭 面鑽32 合之部 a 部 頸 向 指 b β 咅 溝 斜 傾 個 各 成 形 延 伸 部 心 中 溝 合 嵌 頭 鑽 此面 藉觸 ’ 接 2C拔 Jy 推 的 小 且 份 部 的 體 積 於鄰 對大 相擴 成 且 奪 經濟部智慧財產局員工消費合作社印製 接鑽頭嵌合溝32、32間交界部之傳動鑽前端抵接之側壁部 33之面積（傳動鑽對螺釘施加旋轉驅動力面之面積，亦即 驅動面面積）。 第7圖係分別顯示本發明傳動鑽50與前逑第6圖之（a )及 (b)所示螺釕30結合狀態者。亦即，如第7圖之（a)及（b)所 示，於本實施例中，在傳動鑽50前端所形成扁平刃部52抵 接螺釘3 0之螺釘頭部3 0 a上所形成鑽頭嵌合溝3 2之際，扁 平刃部52前之前端面形成圓錐狀突起54，因此，可使對前 逑鑽頭嵌合溝32開口緣部之接觸變成點乃至於線之極小接 觸，同時，簡易、迅速達成彼此中心部之位置一致，減低 對螺钉頭部之磨損，對傳動鑽50與螺釘30之適當結合進行 修正。 實施例4(螺訂構成例2) 第8圖之（a )及（b )係顯示可較佳地配合本發明傳動鑽5 0 之另一螺釘構造例及其結合狀態者。亦即，如第8圖之（a) 及（b)所示，於本實施例中，於螺奵30之鑽頭嵌合溝32之 對向側壁部33分別形成自螺釕頭部3〇a之中心部指向半徑 尺度適用_國國家標準（CNS)A4規格（210 X 297公釐) -21 ~ -------------裝--------訂---------線 (請先閱讀背面之注„意事項再¾寫本頁) IS ——s s L「¥ m A7, _B7_ 五、發明說明（19 ) 方向外側，溝寬成逐漸展寬狀之溝33a、33b。另一方面， 對應於如此構成之螺釘30，將傳動鑽50之扁平刃部52前端 之側壁部53作成配合各個前述逐漸展寬狀之溝33a、33b之 形狀，亦即逐漸展寬狀之側壁部53a、53b。 如此，藉由於傳動鑽50之扁平刃部52前端形成逐漸展寬 狀側壁部53a、53b，可於傳動鑽50之刃部52與螺钉3C 成逐漸展寬狀溝33a、33b之鑽頭嵌合溝32之各側壁部 |)抵接之際，使前述溝33a、3 3b與前述 部53a、53b間之鏠隙變得極小，達成螺釘與傳動鑽之適當 嵌合，同時，藉由對向鄰接各溝33a、33b之側壁部開口角 度/3設定成較直角小若干之銳角，可於螺固作業中，確實 防止傳動鑽50之脫嚙現象，達成對螺釕獲得平衡的扭矩傳 輸。 實施例5 (螺釘構造例3) 第9圖之（a )、（ b )及（c )係顯示可較佳地配合本發明傳動 鑽50之螺訂30之又另一構造例及其结合狀態者。亦即，如 第9圖之（a)及（b)所示，於本實施例中，在螺钉30之鑽頭 嵌合溝32端緣部形成亙預定深度自垂直面向内側凹入成截 面大致「<」形狀之壁部32a，設有自此凹人壁部32aa之 下緣部32a’沿大致水平方向伸延之段部32b!，其次自此段 部32b’指向螺釘頭部30b之中心部形成各個傾斜溝部32c， 於其底部形成緩媛傾斜之大致圓錐底面34。其他構造與前 述實施例3之第6圖（a)、（b)所示螺釘30之構造相同。 根據本實施例之螺钉30，於螺釘頭部30之鑽頭嵌合溝32 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -------------裝-------訂---------線 (請先閲讀背面之注_音？事項§寫本頁) 經濟部智慧財產局員工消費合作社印製 經濟部智慧財產局員工消費合作社印製 A7 _ B7_ 五、發明說明（20 ) 端緣部分別形成凹入壁部32aa及段部32b ’，自前述段部 3 2 b ’端緣部指向螺釘3 0 b之中心部伸延形成各涸傾斜溝部 32c，藉此可構成相對於鑽頭嵌合溝32全體的部份且小的 推拔接觸面積，並擴大鄰接鑽頭嵌合溝32、32間交界部中 傳動鑽前端抵接之側壁部33之®積。 亦即，如第9(c)圖所示，根據本實施例，傳動鑽50之扁 平刃部52前端嵌入至各個螺釕30之鑽頭嵌合溝32之段部 32b，前述刃部前端之側壁部53與螺釘30之鑽頭嵌合溝32 之側壁部33抵接，使傳動鑽50轉動，藉此可對螺釘30進行 預定扭矩之傳輸。尤其是，根據本實_例之螺釘30及傳動 鑽50之組合*於螺釘30之鑽頭嵌合溝32端緣部形成之凹入 壁部32aa與傳動鑽50嵌合之際，自其垂直面凹人部份通常 會存在有空隙部G，因此，塵埃、異物等進入鑽頭嵌合溝 32内時，可藉由傳動鑽50強制嵌入操作，將塵埃、異物等 推入前述空隙部G内而除去，藉此可容易且確實達成傳動 鑽50之刃部前端與螺釘30之鑽頭嵌合溝32之嵌合。 又，根據本實施例之螺訂30及傳動鑽50之組合，於螺訂 螺固或卸下作業中，使用一般十字傳動鑽，於鑽頭嵌合溝 32之開口部側破損情形下，可藉由使用前述傳動鑽50，將 堆積於鑽頭嵌合溝32內之切削粉末推人鑽頭嵌合溝32内而 除去，同時達成鑽頭嵌合溝32底部側與傳動鑽50之刃部前 端之適當嵌合，完成螺釘螺固或卸下作業。 進一步根據本實施例之螺釘30與傳動鑽50之組合，於傳 動鑽50嵌入鑽頭嵌合溝32之際，藉由前述凹入壁部32a 3擴 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -23 - -------------裝--------訂---------線 (請先閱讀背面之注*事項#:礎寫本頁) 經濟部智慧財產局員工消費合作社印製 A7 _ B7_ 五、發明說明（21 ) 大其前端之自由度，即使在傳動鑽50相對於螺釘30軸向傾 斜些許狀態下，亦可容易且確實達成其向鑽頭嵌合溝30嵌 入0 啻施例6 (鏍釘構造例4) 第10圖之（a)及（b)係分別顯示可較佳地配合本發明傳動 鑽50之又另一螺訂30構造例者。 亦即，第10 (a)圖係顯示於螺釕30a之中心剖藉十字狀交 叉之一對直線溝31a、31b構成之十字螺釘30者。而，本實 施例之十字螺釘30A配置成，前逑一直線溝31a於其端線部 形成預定深度之垂直端壁部35a*設有自此垂直端壁部35a 下緣部沿大致水平方向伸延之段部32b’，其次，自段部 32b’指向螺訂頸部之中心部形成各個傾斜溝部32c，同時 於其底部形成媛媛傾斜之大致圓錐底面34。又，前述另一 直線溝31b由伸延形成水平溝部之構造構成，此水平溝部 具有與一字鑽頭之刃部充份抵接銜仓之寬度。因此，可較佳 地使用本發明傳動鑽50於如此構成之正負螺釘30A。 又，第10 (b)圖係顯示前述正負螺釘30 A之變形例者。於 此情形下，由於與前述傳動鑽50之刃部52成對應醑係，故 於正負螺釘30A之一直線溝與另一直溝31b中，分別形成溝 寬成大致逐漸展寬之溝33a'、33b’。藉由如此構成，於傳 動鑽50之刃部52與正負螺钉30A之鑽頭嵌合溝嵌合之際， 可獲得與前述實糜例4之第8(a)、（b)圖所示螺釘k情形完 全相同之作用及效果。 實施例7 (螺釘構造例5 ) 本紙張尺度適用中國國家標準（CNS)A4規格（2〗0 X 297公釐） -24 - -------------裝--------訂--------•線 (請先閱讀背面之注t'事項#:w寫本頁) A7 _B7_五、發明說明（22 ) 第1〗圖之（a)及（b)係顯示前逑實施例6之第10(a)及（b) 钉 螺 負 正 示 所 圖 及 溝 線 直 1— 之垂 第 Α 自 如30度 ， 釘深 即螺定 亦負預 。 正 亙 者於成 例對形 形栢部 變’緣 一 中端 另例32 又施溝 之實合 OA本嵌 ;於頭 ’ 鑽 示於 所， OH 3 圖 1 直 致 大 面 截 成 入 凹 側例 內施 向實 面述 第 之 5 如 由 藉 9 此 因 釘 螺 之 5 例 部 壁 之 狀 前 與 成 構 溝 合 莰 頭 Κ 之 同 相 ο 3 訂 螺 示 所 圖 a 施 實 述 前 與 得 獲 可 ΛΠ ο 3 釕 螺 負 正 成 31/ 效 及 用 作 之 同 相 全 完 本例 就施 然實 固述 上前 M於 限 實前 佳就 較如 例 Μ 加 -I 丨 I 丨 — — — — — — —— — _ 丨 I (請先閲讀背面之注·意事項ΐ'Ι?寫本頁) 亦， ， 然 狀當 皿 , 或效 狀有 釜亦 為用 fcc fee 倭 β 即 合 狀組 形此 不部彼可 並 頭例内 明 ，成圍 發言構範 本而各神 惟例，精 ， 造又明 明構，發 說各用本 之適 釘可 例螺樣不 施述同在 傳 明 發 本 0 , 更知 變可 計例 設施 種實 種逑 他 ί刖 其由 作 鑽 之 部 頭 釘 螺 在 與 係 自平 時致 同大 ’ 成 部形 壁部 端心 直中 垂之 致部 大頸 之釘 度螺 深向 定指 預部 成緣 形下 部之 緣部 端壁 溝端 合 直 嵌垂 頭此 . -線· 經濟部智慧財產局員工消費合作社印製 .1 資 舞 錄 圓之 , 壁端 者端前 合直部 配垂刃 钉之平 螺溝扁 之合此 面嵌於 底頭 ， 部 刃 成部平 形頭扁 部钉之 心螺部 中沿緣 其，端 在部直 步端垂 一 前致 進於大 , 成 之 部形入 底備嵌 面具部 狀 隹 圓 之 度 角 斜 傾 際 之 合 嵌 溝 合 嵌 5 頭 4 賛 ) 鏵 11 與 致端 大前 有鑽 Hll-、 面傳 平於 水 ， 於此 對藉 相 ， 成部 構起 面突 前 不旋 全鑽 完動 ， 傳 下 於 形使 情即 面 ’ 表態 部狀。 頭合象 II嵌規 螺釘嚙 過螺脫 擦與止 接成防 滑且實 在，確 端面可 前表亦 部其 ， 刃到中 平傷作 扁損操 述會轉 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 25 五、發明說明（23 ) 又，於本 前端之扁平 接之際，由 使對前述鑽 接觸，同時 螺钉頭部之 進一步， 部，同時， 漸展寬狀溝 小，尤其是 定成較直角 動鑽之脫嚙 發明傳動 刃部與形 於扁平刃 頭嵌合溝 簡易迅速 磨損，對 於傳動鑽 於螺釘形 ，藉此使 鑽及螺 成於螺 部之前 開口緣 達成彼 傳動鑽 之扁平 成與鑽 傳動鑽 ，藉由將鄰接各 小若干之銳角， 現象，達成螺釘 A7 B7 釘之組合中，在形成於傳動鑽 釘之螺釘頭部之鑽頭嵌合溝抵 端面形成圓錐狀突起部，故可 之接觸成為點乃至於線之極小 此中心部之位置一致，減低對 與螺釘之適當結合進行修正。 刃部前端形成逐漸展寬狀側壁 頭嵌合溝中各側壁部配合之逐 與螺釕之嵌合面間縫隙變得極 溝之對向側壁部開口角度/S設 可確實防止螺釘螺固作業中傳 得到平衡的扭矩傳輸。 閲 讀 背 面 之 注 項 I裝 訂 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 26Printed by A7 _ B7 of the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. V. INTRODUCTION TO THE INVENTION (1) Technical Field The present invention relates to transmission drills and screws used therefor, and more particularly to the use of a drill bit formed on the head of a screw as a bit fitting groove. The cross groove is closely fitted with the driving drill matching the groove. Usually, it can be quickly and accurately achieved by a proper torque transmission, and the drive drill for screw installation and removal can be achieved by combining M with a ruthenium suitable for this drive drill. 2. Description of the Related Art A combination of a general nail and a driving drill is known to have previously been constituted as shown in FIGS. 13 to 16. That is, Figs. 13 and 14 show a conventional ruthenium screw having a cross groove, and Fig. 15 shows a driving drill for the cross groove screw, and Fig. 16 shows a state in which the aforementioned screw is fitted with the driving drill. However, the conventional screw 10 shown in FIG. 13 is provided with a cross groove 12 in the screw head 10a. This cross groove 12 is formed by extending from each end edge to the center of the screw neck portion 10b and extending to form each of the fixed inclined groove portions 12a. A bottom portion 14 is formed on the bottom of the cross groove 12 which is gently inclined. Moreover, reference numeral 13 denotes a push-out side wall portion formed between each adjacent cross groove 12. That is, here, the side wall portion 13 is pushed into contact with a blade portion of a driving drill described later. In addition, it is arranged that the adjoining corner portions of each of the inclined groove portions 12a of the front ridge respectively form a push-out joint surface 1 7 a, 1 extending from the position of the circular-dimensional bottom surface 4 to the opening edge portion of the cross groove 12 of the screw head 10a. 7 b, part of the cutting edge of the stern drive drill also abuts with these push joints 1 7 a 7 b. On the other hand, the conventional driving drill 20 shown in FIG. 15 is arranged so as to have * each of the cutting edge portions 22 fitted into the cross groove 12 of the screw 10 and also each of the extended cutting edge portions 22a formed thereon, The edge of the groove 12 points to the paper size and applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ~ 4-------- 1! ------- line (please read the note r on the back to write this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 _ B7_ V. Description of the invention (2) The center of the screw neck 10b is extended The shape of the formed inclined groove portion 12a is matched. Moreover, reference numeral 23 denotes a push-out side wall portion formed on the side surface of each of the aforementioned blade portions 22 or the extended blade portions 22a. That is, the push-out side wall portion 23 is in abutment engagement with the push-out side wall portion 13 formed in the cross groove 2 of the aforementioned screw 10. According to the combination of the conventional screw and driving drill configured in this way, as shown in FIG. 16, if the screw 10 is fitted with the driving drill 20, each blade portion 22 and the extended blade portion 223 of the driving drill 20 are embedded in each cross as described above. The inclined groove portion 12 a of the groove 12, the side wall portion 23 of each of the aforementioned blade portions 22 and the elongated blade portion 22 a are in contact with the push side wall portion of the cross groove 12 of the screw 10], and the driving drill 20 is rotated to thereby perform the screw 10 Scheduled torque transmission. In other words, it is possible to attach and detach the object with necessary screws. However, according to the conventional combination of the screw 10 and the driving drill 20 described above, as shown in FIG. 16, the cross groove 12 of the screw head 103 is directed from the end edge to the center of the screw neck 10 b to form a fixed tilt. The groove portion 12a is fitted to the cross groove 12 in accordance with the shape of the inclined groove portion 12a in accordance with the shape of the inclined groove portion 12a corresponding to one of the driving drills 20, and the ridge portion of the elongated blade portion 22a points from its front end. The rear gradually widens. Further, since the push-out side wall portion 23 formed in each blade portion 22 of the driving drill 20 also abuts on the push-out side wall portion 13 formed in the cross groove 12 of the screw 10, if the drive drill 20 is rotated in a predetermined direction The contact state between the aforementioned driving drill 20 and the cross groove 12 is a so-called push contact. Therefore, the front end of the driving drill 20 will fly out along the inclined surface of the inclined groove portion 12a of the aforementioned cross groove 12 (Figure / 6). (Arrow)). In particular, as shown in Figure 14, the shape of the cross groove of the conventional screw is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) due to the paper size. _ 5----------- -Installation ---- Order ----- I --- line (please read the note on the back δ to write this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 _B7 V. Description of the invention (3) It is easy to fit with the front end of the driving drill 20, so the groove width of each cross groove 12 is made wider than the shuttle line portion of the elongated blade portion of the driving drill 20. On the other hand, it is adjacent to the boundary portion or corner of the cross groove 12, 12. The areas of the push-out side wall portion 13 and the push-out joint surfaces 1 7 a and 17 b formed by the parts are small. Therefore, in the rotation operation of the driving drill 20, the pushing side wall portion 13 and the pushing joint surfaces 17a, 17b are subjected to extreme stress and the screw resistance is extremely large. 7a and 17b are gradually broken as shown by the oblique line 15 in FIG. Therefore, if this damaged portion (slashed portion 15) is enlarged, the disengagement of the aforementioned driving drill 20 will frequently occur, and eventually the screwing operation becomes impossible. From this point of view, in order to prevent the aforementioned In the disengagement phenomenon, when the driving drill 20 rotates, it is necessary to apply a thrust force for pressing the screw groove 12 a strongly. However, it is not a problem when the object to be screwed is a rigid body such as gold cymbal, but in the case of precision parts, it has the disadvantage that these objects will be damaged or broken. In addition, the occurrence of the aforementioned disengagement pattern will accelerate the wear of the front end portion of the drill, that is, the blade portion 22 and the elongated blade portion 22a. Due to this wear, the aforementioned disengagement pattern will be further ribbed, and the screw groove will be increased as a result. damaged. Further, by applying excessive thrust to the aforementioned driving drill, it is possible to prevent anterior disengagement. However, on the contrary, the correct moment cannot be transmitted to the screw. The thrust of the driving drill 20 varies depending on the operator. As a result, Difficult points for errors in screw tightening torque. In addition, in the case of tapping and screwing, when screwing on objects such as synthetic resin, the rotational friction of the screwing and the friction caused by the thrust paper are subject to the Chinese National Standard (CNS) A4 specification ( 210 X 297 mm) -Q-------------- Install -------- Order -------- • Line (Please read the note on the back first ' Matters needing to be written on this page) Printed by the Consumers' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (4) It will cause high heat to the object, reduce the hardness of the screw mounting part of the object * Difficult points such as broken objects. On the other hand, in the case of manually screwing the screws, there is a difficulty in that the operation of fully pressing the transmission case 20 against the screws and rotating the screws causes the operator to labor and fatigue. In addition, according to the combination of the conventional screw 10 and the driving drill 20 described above, in the case of screw installation using a manual tool or a power tool, the screw ruthenium shaft and the driving drill shaft are maintained when the screw groove is fitted into the front end of the bit. It is difficult to perform screw rotation operation in the coaxial state. Therefore, not only the aforementioned disengagement phenomenon frequently occurs, but also the screw groove is often damaged in the case where the screw is driven and the drive drill shaft is tilted. Even in the screw removal operation, the same disengagement phenomenon K and screw damage as described above are prone to occur. In this case, the screw ruthenium cannot be removed, and a part of the screw installation object must be destroyed by Μ. situation. In particular, in the case of blockage in the screw groove, etc. *, there are significant disadvantages of the aforementioned situation. From this point of view, the applicant has previously proposed a combination of a screw and a driving drill in a combination of a ruthenium and a driving drill (Japanese Unexamined Patent Publication No. 8-1 45024 and Japanese Unexamined Patent Publication No. 9-1 77743). By improving the structure of the groove in the groove of the screw bit of the screw bit, it can effectively prevent the disengagement of the driving drill and prevent the damage of the conventional drill. Even if the screw bit of the screw bit is temporarily damaged, an appropriate and rapid screw thread can still be achieved. Ruthenium screwing operation. However, as shown in No. 12 (b), the screw and driving drill combination related to JP-A-8-1 45024 is attached to the end edge of the bit fitting groove 32 of the screw head 30a. This paper standard applies Chinese national standards ( CNS) A4 specification (210 X 297 mm) ------------- install -------- order ----- II --- line (please read the note on the back first) " Issue 3 written on this page) Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7_ 5. The description of the invention (5) forms the vertical end wall portion 32a of a predetermined depth, and the horizontal end portion is formed from the vertical end wall portion respectively. 32b, from which the horizontal section 32b points to the central portion of the screw neck portion 30b, each inclined groove portion 32c is provided, or from the aforementioned vertical end portion to the central portion of the screw neck portion 30b to form each push or curved groove portion, further A substantially conical bottom surface 34 is formed at the bottom thereof, and a driving drill (refer to FIG. 12 (a)) * K provided with a wing part which is in close proximity to the aforementioned horizontal section or a curved groove is provided. That is, in FIG. 12 (b), the right-angled edge portion 42a and the elongated wing portion 42b of the wing portion 42 of the driving drill 40 are respectively fitted with the horizontal section portion 32b and the inclined groove portion of the drill-fitting groove 32 of the mandrel 30. 32c, the side wall portion 43 of each of the aforementioned wing portions 42 and the elongated wing portion 42b abuts against the side wall portion 33 of the drill fitting groove 32 of the screw 30, and a predetermined torque transmission can be performed on the screw 30 by rotating the driving drill 40 *. In addition, as shown in FIG. 12 (c), a screw and a driving drill assembly related to Japanese Patent Application Laid-Open No. 9-177743 are attached to the end edge portion of the bit fitting groove 32 of the screw head 30a to form a vertical end wall portion 32a of a predetermined depth. At the same time, from the lower edge of the vertical end wall to the center of the head of the screw, a raised non-planar bottom is formed. From the bottom of the non-planar bottom, the raised portion points to the center of the neck of the screw to form each inclined groove 32c. The bottom part forms a substantially conical bottom surface, and is equipped with a driving drill (refer to FIG. 12 (a)) having a blade portion having the same structure as described above. That is, in FIG. 12 (c), the horizontal surface portion 42a and the protrusion 42b forming the flat blade portion 42 of the driving drill 40 are respectively fitted into the non-planar bottom portion 32b and the inclined groove portion 32c of the drill fitting groove 32 of the screw 30. The side wall portion 43 of the blade portion 42 and the protruding portion 42 b and the side wall portion 33 of the drill fitting groove 32 of the screw 30 abut against the paper size of the Chinese National Standard (CNS) A4 (210 X 297 mm) 8 --- ---------- Install! ---- Order .-- I--I--line (please read the notes and notes on the back ^ # write this page first) Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of Invention (6) By rotating the driving drill 40, a predetermined torque can be transmitted to the screw 30. Each of the aforementioned proposed driving drills can form a horizontal section 32b or a non-planar bottom 32b due to the bit-fitting groove 32 of the screw 30, which can increase the fitting of the wing portion 42 or the flat side portion 42 of the driving drill 40 with the bit. The abutment area of the side wall portion 33 of the groove 32, and at the same time, the pushing contact area where the inclined groove portion 32c of the screw fitting groove 32 of the screw 30 and the elongated wing portion 42b or the protrusion 42b of the driving drill 40 abut are partly and extremely small. Therefore, it can surely prevent the disengagement phenomenon that occurs in the conventional screw and driving drill combination. However, even the aforementioned proposed screw and drive drill combination is still not sufficient to satisfy those who drive the front end of the drive drill to be smoother and more quickly fit into the drill groove formed on the head of the screw. That is, it has been observed that, in the previously proposed structure of the driving drill 40, the flat surface constituted by a horizontal surface portion 42a extending at a substantially right angle is engaged with the vertical end wall portion 32a formed by the front edge of the bit fitting groove 32 of the aforementioned drill bit. When the blade portion 42 is rotated while one side of the driving drill is engaged with the drill fitting groove 32 formed on the head of the screw ruthenium 30, the front end of the flat blade portion 42 will slidingly rub against the surface of the screw head and damage the surface. In addition, even when the front end of the driving drill 40 is fitted with the bit fitting groove 32 of the screw 30a, the disengagement phenomenon occurs. That is, in the combination of the driving drill shown in FIG. 12 (a) and the screw shown in FIG. 12 (b), when the screw is mass-produced, the groove 32 is inserted into the drill bit of the ruthenium head 32a. In the case where the horizontal section portion 32b extending perpendicularly to the vertical end wall portion at a predetermined depth formed at the end edge portion is not formed properly, the head punch wear caused by, for example, the drill bit fitting groove 32 balancing process may cause wear For the aforementioned vertical end wall 32a and horizontal section, the paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 9 ------------- Installation ------- -Order --------- line (Please read the note on the back 3 to write this page) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Employees' Cooperatives This paper is printed in accordance with China National Standard (CNS) A4 (210 X (297 mm) A7 B7_ 5. Description of the Invention The situation where the right-angled intersection of (7) 32b bulges. In this case, the front end of the driving drill 40 cannot be fully fitted with the drill fitting groove 32 of the screw head 30a, resulting in an unstable fitting state. Obviously, during the rotation operation of the driving drill 40, a disengagement phenomenon will occur. danger. On the other hand, in the combination of the driving drill shown in Fig. 12 (a) and the screw shown in Fig. 12 (c), instead of the horizontal section 3 2 b, the drill bit fitting groove 32 is made into a non-planar bottom 32 b. . Because it is set to a deeper size *, even if the aforementioned devitrification phenomenon can be avoided, the strength of the neck portion 30b is low. Therefore, it is obvious that the screw neck portion 30a is broken when the driving drill 40 is performing the screwing operation. Danger. In this regard, the present inventors have conducted several careful studies and experimental results, and found that the basic structure of the transmission drill is matched with the screw, and the screw is formed at the end of the groove of the screw head to form a substantially vertical end wall of a predetermined depth. At the same time, from the lower edge of the vertical end wall to the center of the neck, a generally flat bottom is formed. Further, a circular bottom surface is formed at this center. Before the driving drill, a flat blade is formed at the end, which forms a thread along the screw. The vertical end wall of the drill bit fitting groove is inserted into the substantially vertical end edge. At the same time, a conical protrusion is formed at the front end of the flat blade portion, which has an inclination angle of approximately 1 ° to 45 ° relative to the horizontal plane. The best angle is 25 ° ~ 35 °, so that when one side rotates the driving drill and the other is engaged with the bit-fitting groove formed by the screw head, the front of the flat blade of the front blade slides over the screw head In the case of external surfaces, the surface is not damaged, and it is fitted with the screws. Even in the rotary operation of the driving drill, the phenomenon of detachment can be reliably prevented. On the other hand, I found that the screw with the aforementioned driving drill is on the screw head -10-------------- First read the original intention on the back ^ write this page) A7 B7 V. Description of the invention (8 The drill bit printed by the Employee Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is embedded in this vertical end to form the aforementioned drill opening to the outside wall and is used for transmission Each side of the groove is formed with screws, and especially when the groove is fitted to form the drill bit, recessed to cut off the vertical surface of the foreign body, etc., and it can be expanded smoothly. Therefore, it can prevent the prevention of the rapid and rapid summary of the invention. The inclined groove head of the part is fitted approximately at an angle to make the blade wall part against the driving drill. It is found that the end of the inclined edge of the inclined groove is substantially recessed into the aforementioned self-forming screw. The present invention slidingly wipes it with the screw. The edge portion is formed into a predetermined depth, and the lower edge portion is formed into a section portion. Further, the groove width of the groove is gradually widened from the screw head. When adjacent straight portions are connected with the screw, it is appropriate to provide a section groove portion. Edge shape r < J part of the flat clearance part is made by screws. The purpose of screwing is in the screw-stitching and fitting industry. The formation of nails with a small apparent angle fits between the edge-by-edge part and the groove. Each section forms a pre-shaped wall part at the bottom, which is usually removed when there is space, and the generally vertical end wall part that can achieve its or unloading operation is usually formed at the center of the neck part of the screw head to form a round-dimensional bottom surface. The central part of the shaped part points to the opposite side acute angle of each of the aforementioned grooves connected to the radius side. By using this screw to gradually widen the groove of the drill bit, the gap between the fittings becomes extremely small, which can prevent the disengagement phenomenon. The screw heads respectively extend into a substantially conical bottom surface at the head of the screw and point toward the center of the neck of the screw ruthenium. At a predetermined depth from the vertical surface to the inside, by using this screw, the self-gap portion is used to transfer the dust, time, and power to the transmission. When the drill is fitted, it is properly fitted with the front end of the blade to provide a combination of a driving drill and a screw. The damage caused by the combination of drill and screw can often achieve a proper efficiency. Lifting operation in the state of the neck surface To achieve the aforementioned purpose, the transmission drill system and screws related to the present invention are coordinated with the private paper size applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) 11 II on the back Ordered by the meeting page ▲ Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 _B7 V. Description of the invention (9) This screw forms a substantially vertical end wall with a predetermined depth at the edge of the groove of the bit fitting groove of the screw head, and since then The lower edge portion of the vertical end wall portion points to the center of the screw neck portion to form a substantially flat bottom, and further forms a conical bottom surface at the center portion, which is characterized in that a flat blade portion is provided at the front end portion and a drill bit is formed along the head of the screw. A substantially vertical end edge portion of the vertical end wall portion of the fitting groove is inserted into the front end surface of the flat blade portion to form a conical protrusion portion having an inclined angle of approximately 1 ° to 45 ° with respect to the horizontal plane. In this case, the conical protrusion of the front end surface of the flat blade of the forefoot can have its conical surface inclined at an angle of 25 ° to 35 ° with respect to the horizontal plane. In addition, the circular-dimensional projections on the front end surface of the flat blade portion may be formed as single or multiple pushing surfaces. The circular-dimensional projections on the front end surface of the flat blade portion may further have a circular-dimensional surface having a convex or concave shape in cross section. On the other hand, the fitting groove of the drill bit corresponding to the screw forms a groove having a groove width that gradually widens from the center of the screw head toward the outside in the radial direction, and the two side wall portions at the front end of the flat blade portion are made to cooperate to gradually widen the groove. shape. Further, at least one of the flat blade portions may be provided with a cut-in portion which extends from a front end surface thereof along the axial direction of the drill bit by a necessary length. On the other hand, the screw for the driving drill according to the present invention is characterized in that a segment portion is formed at the end of the groove of the screw fitting head of the ruthenium head respectively. * From this segment portion, the inclined groove portion is extended to the center portion of the neck of the screw. The bottom is formed with a roughly circular bottom surface, and each of the predetermined paper sizes is formed at the edge of the fitting groove of the aforementioned drill bit. The Chinese paper standard (CNS) A4 (210 x 297 mm) is applicable-1 2--------- ------------- Order --------- (Please read the notice on the back ^^ write this page) Printed on paper by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs The scale applies to the Chinese National Standard (CNS) A4 specification (2) 0 × 297 mm. A7 B7_ V. Description of the invention (10) The depth of the wall recessed from the vertical surface to the inside. In this case, the wall portion formed at the edge of the front groove of the fit groove of the front countersink bit can be made roughly cross-section ^ < ". In addition, the aforesaid drill bit fitting groove may be configured such that a groove having a groove width that is gradually widened is formed from the center portion of the screw head toward the outside in the radial direction, so that the opening angle of the side wall portion facing each of the adjacent grooves is slightly smaller than a right angle Acute angle. Further, the K lower screw can be used as the screw ruthenium to cooperate with the driving drill of the present invention. A screw fitting groove formed by a cross groove is formed on the screw head to form a straight groove crossing the fitting groove of the drill for cross driving. The cutting edge of the drill is fitted to form another straight groove for the cutting edge of the straight drive drill to form a substantially vertical end wall at a predetermined depth at the edge of the straight groove, and at the same time to form a predetermined depth at the vertical end wall. It is recessed from the vertical plane to the inside, and the cross section is roughly " < "shaped wall. Furthermore, the present invention is characterized in that the driving drill constituted by the aforementioned structure is combined with the M lower screw at the time of use, and the screw forms a substantially vertical end wall portion of a predetermined depth at the end edge of the bit fitting groove of the screw head, where the vertical The lower edge of the end wall part forms a segment, and at the same time, it points to the center part of the screw neck to form an inclined groove part, and further forms a conical bottom surface at the center part. The grooves of the trenches generally gradually widen the shape of the trenches, so that the opening angles of the opposite side walls of the adjacent trenches are slightly acute angles smaller than the right angle. In addition, the present invention is characterized in that it is combined with the M lower screw ruthenium. The screw forms the horizontal bottom or inclined groove portion from the lower edge of the bit fitting groove end of the screw head to the center of the screw neck, and at the same time Form the bottom of the cone ~ 13-------------- install -------- order -----line (please read the note on the back first to write this page) Printed by the Employees ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the paper size is applicable to the national standard (CNS) A4 specification (210 X 297 mm) A7 B7_ V. Description of the invention (u) surface, at the edge of the aforesaid bit fitting groove Each part is formed into a wall part which is recessed inward from the vertical surface at a predetermined depth. The present invention is further characterized in that it is combined with a K-positive and negative screw, which is provided with a drill bit fitting groove composed of a cross groove at the head of the screw to form the One of the straight grooves intersected by the bit fitting groove of the drill bit is used for the inserting and fitting of the cutting edge of the cross drive drill, and at the same time, another straight groove is formed for the inserting and fitting of the cutting edge of the flat drive drill to form a predetermined depth at the edge of the straight trench Approximately vertical end wall portion 0 In this case, the aforementioned positive and negative (ten (Slotted) Screws can be configured to form a groove that is gradually widened in one straight groove in the fitting groove of the drill bit, and a groove that is gradually widened in the groove width in the other straight groove. Each side wall portion of the aforementioned progressive sulcus-shaped groove abuts against it when there is an equal 鏠 Pim. Brief Description of the Drawings Figure 1 is an enlarged side view showing the essential parts of an embodiment of a driving drill of the present invention. Figure 2 is the first The enlarged side perspective view of the main part of the driving drill shown in the figure. Figure 3 is an enlarged bottom view of the driving drill shown in Figure 1. Figures 4 (a) to (d) show various modification examples of the front end of the driving drill of the present invention. The schematic side view is shown in Fig. 5. Fig. 5 shows another modified example of the driving drill of the present invention, (a) is an enlarged side view of a main part, and (b) is an enlarged bottom view. Fig. 6 is a schematic view showing that it is applicable to An example of a screw configuration of the driving drill of the present invention is (a) an enlarged cross-sectional side view of the main part of the screw head, and (b) an enlarged plan view of the screw head. -14----------- --- Equipment -------- Order --------- line (please read the note on the back first and note S to write this page) Printed by the Consumer Cooperative of the Property Bureau κι __ Β7 V. Description of the invention (12) Figure 7 is an enlarged cross-sectional side view of the main part of the present invention in which the driving drill is fitted to the screw shown in Figure 6. Figure 8 shows Another example of a ruthenium ruthenium structure which is preferably applicable to the driving drill of the present invention is (a) an enlarged plan view of a screw head, and (b) an enlarged cross-sectional view of a main part of a hoe head showing a fitting state of the driving drill. Plan view. Figure 9 is another example of a screw structure that can be suitably applied to the driving drill of the present invention. (A) An enlarged cross-sectional side view of a main part of a screw head, and (b) an enlarged plan view of a screw head. (C) is an enlarged sectional plan view of the main part of the screw head showing the fitted state of the driving drill. Fig. 10 is a structural example of positive and negative screws of the driving drill applicable to the present invention, (a) is an enlarged plan view showing a screw head of the positive and negative screws of one structural example, and (b) is a positive and negative screw showing a modification thereof. A magnified plan view of the head of the helical screw. Fig. 11 is an enlarged plan view showing a modified example of the screw change shown in Fig. 10, U) is a ruthenium head, and (b) is an enlarged cross-sectional side view of a main part of the screw head. Figure 12 shows the conventionally proposed screw and the structure of the driving drill with this ruthenium, (a) is an enlarged side view of the main part of the driving drill, and (b) shows an example of the screw structure of the conventional proposal and An enlarged sectional side view of the main part of the driving drill in the fitted state, (c) is an enlarged sectional side view of the main part showing another screw structure example conventionally proposed and the fitted state of the driving drill. Fig. 13 is a sectional side view of the main part of a conventional general Phillips screw. Fig. 14 is a sectional side view of the main part of the cross recessed screw shown in Fig. 13; Fig. 15 is a side view of the main part of a conventional drill for general cross groove screws. This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm)-1 5 _ *-------------- ·· ----- I--I --- line (please read the note on the back * Matter 3 and write this page) A7 _B7_ V. Description of the invention (13) Figure 16 shows the cross groove screw shown in Figure 13 and Figure 15, Sectional side view of the main part of the driving drill shown in a coupled state. Description of component numbers Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs: Opening angle of the side wall portion Θ: Inclined angle G: Gap portion T1: Side wall portion T2: Side wall portion T3: Side wall portion T4: Side wall portion 10: Spiral ruthenium 10a : Screw head 1 0 b: Screw neck part 12: Cross groove 1 2 a: Inclined groove part 1 3: Push side wall part 14: Round bottom surface 1 5: Oblique line part 1 7 a: Push joint surface 1 7 b: Push-pull joint surface 2 0: Driving drill 22: Blade part 2 2 a: Extension blade part 2 3: Push side wall part * -------------- Installation ----- --- Order --------- line (please read the note on the back side 'Issue 3 write this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 16 5 Description of the invention (14) A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 30: Screw 30A: Cross ruthenium 30a: Spiral ruthenium head 30b: Screw neck 31a: Straight groove 31b: Straight groove 32: Drill bit fitting Groove 32a: Vertical end wall portion 32a ': Lower edge portion 32aa: Wall portion 32b: Horizontal section portion (Fig. 12 (b)) 3 2b: Non-planar bottom portion (Fig. 12 (c)) 3 2 b' : Segment portion 32c: Inclined groove portion 33: Side wall portion 33a: Groove 33a ': Groove 33b: Groove 33b ': Groove 34: Conical bottom surface 34c: Conical bottom surface 35a: Vertical end wall portion 37a: Push joint surface 3 7b: Push joint surface I ----- illl — 1— ^ illn — ( Please read the note on the back _Impacts § write this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 17 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (15) 40: Driving drill 42: Wing (Fig. 12 (b)) 42: Flat blade (Fig. 12 (c)) 42a: Right-angle edge (12 (b) circle) 42a: Horizontal face ( (Fig. 12 (c)) 4 2b: Extended wings (Fig. 12 (b)) 42b: Protrusions (Fig. 12 (c)) 43: Side wall portion 50: Driving drill 52: Flat blade portion 52a: Blade Part slice 53: vertical side wall portion 53a: side wall portion 53b: side wall portion 54: conical projection 54a: single push-out surface 54b: multi-stage (two-stage) push-out surface 54c: convex surface 54d: concave surface 55: for cut-in portion The best form for implementing the invention Secondly, referring to the drawings, the embodiment of the driving drill and screw combination of the present invention will be described in detail as follows. Example 1 (structure example of transmission drill 1) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 18 * · ------------------------ --- Order --------- line (please read the note on the back side and choose ¥ to write this page) The paper printed by the Employee Consumer Cooperatives of the Ministry of Economic Affairs and Intellectual Property Bureau applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) A7 B7_ 5. Description of the invention (1β) Figures 1 to 3 show an embodiment of a driving drill of the present invention. That is, * in Figs. 1 to 3, reference numeral 50 denotes the driving drill of the present invention. The front end of the cutting edge portion of the driving drill 50 is configured to the screw head 30a of the conventionally proposed screw 30 shown in Figs. 6 and 7. The central part cooperates with a bit-fitting groove 32 forming a cross groove. Therefore, the driving drill 50 of this embodiment is configured to have a bit fitting groove 32 fitted in the aforementioned screw joint 30, respectively, with respect to the vertical end wall portion 32a and the flat bottom portion formed at the end edge portion of the bit fitting groove 32. 32 b and each of the flat blade portions 52 engaged therewith are provided with a conical protrusion 54 having an inclined groove portion 32 c corresponding to the central portion of the nail neck 30 b formed from the flat bottom portion 32 b of the aforementioned drill fitting groove 32, It is provided on the front end surface of the flat blade portion 52 of the forefoot, and has an inclination angle 0 of approximately 1 ° to 45 ° with respect to the horizontal plane, preferably an inclination angle Θ of 25 ° to 35 °. In addition, the reference symbol 53 indicates a substantially vertical side wall portion, and a number of tapers may be allowed to be formed on both sides of each of the flat blade portions 52 described above. Therefore, the side wall portion 53 is brought into contact with the side wall portion 33 of the drill fitting groove 32 formed in the screw 30 described above. Because the engagement of this driving surface can obtain a sufficiently large engagement area, it can effectively prevent the phenomenon of defeeding caused by the combination of the conventional screw and the driving drill. (A) to (d) of FIG. 4 are examples of various modifications of the conical protrusion 54 formed at the front end portion of the flat blade portion 52 of the driving drill 50 of the present invention. That is, (a) of FIG. 4 is a case where the conical surface of the aforementioned protrusion 54 is a single pushing surface 54a. (B) of FIG. 4 shows a case where the circular dimension of the protrusion 54 is a multi-stage (two-stage) push-out surface 54b with different slopes. Furthermore, (c) of FIG. 4 is a case where the circular-dimensional surface of the said protrusion 54 is made into the convex shape 54c of a cross section. Moreover, -19-------------- install --- I ---- order ----- I --- line (please read the notes and notes on the back first ^^ (Write this page) Printed by A7 _B7_ of the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (17) The fourth circle (d) is the conical surface of the protruding portion 54 made into a concave 54d section. Example 2 (Drive Drill structure example 2) (a) and (b) of FIG. 5 show another embodiment of the flat blade portion 52 of the driving drill 50 of the present invention. That is, in this example, as shown in (a) and (b) of FIG. 5, at least one edge portion of the flat edge portion 52 is provided so as to extend axially from the front end surface thereof along the drill bit. Necessary length of cut-in part 5 5. In this way, the cutting portion 55 is provided in the flat blade portion 52 to form a cutting edge portion H52a that is elastically displaced in the radial direction from the axial center portion of the driving drill 50, and the role of the blade portion 52a can easily achieve the screws 30 and The drill fitting groove 32 is held during fitting. Embodiment 3 (Screw Structure Example 1) Figures 6 (a) and (b) show a structure example of a screw 30 suitable for use with the driving drill 50 of the present invention. That is, in (a) and (b) of FIG. 6, each bit fitting groove 32 螺钉 is provided on the head 30a of the screw 30, and the bit fitting groove 32 is located at the center of the screw head 30a. Set it as an orthogonal positive sign (+). However, this bit fitting groove 32 forms a vertical end wall portion 32a of a predetermined depth at the end edge portion thereof. From this end wall portion 32a, a lower edge portion 32a 'points to the center portion of the screw neck portion 30b to form each inclined groove portion 3 2 c. At the same time, a substantially circular-dimensional bottom surface 34c is formed at the center of the element. In addition, reference numeral 33 indicates a substantially vertical side wall portion formed between each adjacent drill bit fitting groove 32 to appropriately pull out (punch out angle of a header punch) about 1.5 ° to 2 °. Therefore, the side wall portion 33 is in contact with the side wall portion 53 of the flat blade portion 52 of the driving drill 50 of the present invention. Paper size applies to China National Standard (CNS) A4 (210 X 297 mm) _ 20---------------------------------- --- Thread (please read the note on the back and note the year-old page) A7 _B7 V. Description of the invention (18) The groove screw is inserted into the head and the drill is extended. The groove-cone-shaped circle of ten is shown in the figure. The 14th part of the figure is connected at the same angle with the adjacent part. In the adjacent slotted insert drill, the edge of the knot Q in the open part is snail, at b ϋ 2 8, 3 Division 30 The bottom nail surface is flat and the structure is formed. The edge portion is as flat as the bottom surface of the end. 0 2 ϋ 3 7b groove 7.A, the mouth CO is embedded with 37 head drills 32 and the part a neck To the finger β β ditch obliquely, the grooves of the forming extensions in the center of the joints are drilled on this side. Then connect the 2C pull Jy to push the small and small part of the volume adjacent to the large phase and win the Ministry of Economic Affairs Intellectual Property Bureau. Employee consumer cooperative printed the area of the side wall portion 33 where the front end of the driving drill abuts on the drill bit fitting groove 32 and 32 (the area where the driving drill applies the rotational driving force to the screw, that is, the drive Area). Fig. 7 shows the states where the driving drill 50 according to the present invention is combined with the ruthenium 30 shown in Figs. 6 (a) and (b) of the front cymbal, respectively. That is, as shown in (a) and (b) of FIG. 7, in this embodiment, the flat blade portion 52 formed at the front end of the driving drill 50 is formed on the screw head 3 0 a of the screw 30. When the drill-fitting groove 32 is formed, the flat blade portion 52 forms a conical protrusion 54 at the front and front end surface. Therefore, the contact with the opening edge portion of the anterior cymbal-bit-fitting groove 32 can become a point or even a small line of contact. At the same time, It is easy and quick to achieve the same position of the center of each other, reduce the wear on the head of the screw, and correct the proper combination of the driving drill 50 and the screw 30. Embodiment 4 (Screw Stitching Configuration Example 2) (a) and (b) of FIG. 8 show another example of a screw structure and its combined state that can better cooperate with the driving drill 50 of the present invention. That is, as shown in (a) and (b) of FIG. 8, in the present embodiment, the opposite side wall portions 33 of the drill fitting groove 32 of the screw 30 are respectively formed from the screw ruthenium head 30a. The central part of the pointing radius is applicable _ National Standard (CNS) A4 specification (210 X 297 mm) -21 ~ ------------- Installation -------- Order- -------- Line (please read the note on the back side „Identities before ¾ write this page) IS ——ss L「 ¥ m A7, _B7_ V. Description of the invention (19) Outside, the groove width becomes gradually The widened grooves 33a, 33b. On the other hand, corresponding to the screw 30 thus configured, the side wall portion 53 at the front end of the flat blade portion 52 of the driving drill 50 is formed to fit each of the aforementioned gradually widened grooves 33a, 33b, That is, the side walls 53a and 53b are gradually widened. Thus, by forming the gradually widened side walls 53a and 53b at the front end of the flat blade portion 52 of the driving drill 50, the blade 52 and the screw 3C of the driving drill 50 can be gradually widened. The grooves of the grooves 33a and 33b are fitted to the side wall portions of the groove 32. When the abutments are made, the gap between the grooves 33a, 3 3b and the portions 53a, 53b is extremely small, and the proper insertion of the screw and the driving drill is achieved. Together, At this time, by setting the opening angle / 3 of the side wall portion adjacent to each of the grooves 33a and 33b to be an acute angle smaller than a right angle, it can surely prevent the disengagement of the driving drill 50 in the screwing operation, and obtain the screw ruthenium. Balanced torque transmission. Example 5 (Screw Structure Example 3) Figures 9 (a), (b), and (c) show another structure that can better fit the screw 30 of the driving drill 50 of the present invention That is, as shown in (a) and (b) of FIG. 9, in this embodiment, the end edge of the drill fitting groove 32 of the screw 30 is formed at a predetermined depth from the vertical plane. The inside is recessed into a cross section < "The wall portion 32a of the shape is provided with a section portion 32b extending from the lower edge portion 32a 'of the concave wall portion 32aa in a substantially horizontal direction, and from this section portion 32b' to the center portion of the screw head portion 30b. Each of the inclined groove portions 32c is formed, and a substantially conical bottom surface 34 is formed at the bottom of the inclined groove portion. The other structures are the same as those of the screw 30 shown in Figs. 6 (a) and (b) of the third embodiment. According to the screw 30 in this embodiment, the drill bit fitting groove 32 in the screw head 30 is adapted to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ------------ -Installation ------- Order --------- line (please read the note on the back first? Matters § write this page) The Intellectual Property Bureau of the Ministry of Economic Affairs printed the intellectual property of the Ministry of Economy A7 _ B7_ printed by the Bureau ’s Consumer Cooperatives V. Description of the invention (20) The end edge part forms a recessed wall part 32aa and a segment part 32b ', respectively, and the end edge part points to the center of the screw 3 0 b from the aforementioned segment part 3 2 b' Each of the sloping groove portions 32c is extended to form a small push contact area with respect to the entire part of the bit fitting groove 32, and the front end of the driving drill in the junction between the adjacent bit fitting grooves 32 and 32 is enlarged. The product of the connected side wall portion 33. That is, as shown in FIG. 9 (c), according to the present embodiment, the front end of the flat blade portion 52 of the driving drill 50 is embedded in the segment portion 32b of the bit fitting groove 32 of each ruthenium 30, and the side wall of the front end of the blade portion The portion 53 is in contact with the side wall portion 33 of the bit fitting groove 32 of the screw 30, and the driving drill 50 is rotated, whereby a predetermined torque can be transmitted to the screw 30. In particular, according to the combination of the screw 30 and the driving drill 50 according to the present example *, when the recessed wall portion 32aa formed at the end edge portion of the bit fitting groove 32 of the screw 30 is fitted with the driving drill 50, from its vertical plane There is usually a gap G in the concave part. Therefore, when dust, foreign matter, etc. enter the drill fitting groove 32, the driving drill 50 can be forced into the operation to push the dust, foreign matter, etc. into the gap G. With this, the fitting of the leading end of the cutting edge portion of the driving drill 50 with the bit fitting groove 32 of the screw 30 can be easily and surely achieved. In addition, according to the combination of the screw set 30 and the driving drill 50 of this embodiment, in the screw setting or unloading operation, a general cross drive drill is used, and when the opening side of the bit fitting groove 32 is damaged, it can be borrowed By using the aforementioned driving drill 50, the cutting powder accumulated in the bit fitting groove 32 is pushed into the bit fitting groove 32 and removed, and at the same time, the bottom of the bit fitting groove 32 and the front end of the cutting edge of the driving drill 50 are properly inserted. Close, complete the screwing or removing operation. Further according to the combination of the screw 30 and the driving drill 50 in this embodiment, when the driving drill 50 is embedded in the bit fitting groove 32, the paper wall is expanded by the aforementioned recessed wall portion 32a 3 and the Chinese paper standard (CNS) A4 specification is applied. (210 X 297 mm) -23-------------- install -------- order --------- line (please read the note on the back first) * Matter #: Foundation write this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 _ B7_ V. Description of the invention (21) The front end has a large degree of freedom, even when the driving drill 50 is tilted slightly relative to the screw 30 in the axial direction Next, it can be easily and surely inserted into the bit fitting groove 30 of the drill bit. Example 6 (Staple nail structure example 4) (a) and (b) of FIG. 10 respectively show that the transmission of the present invention can better cooperate with the transmission of the present invention. Drill 50 and another screw 30 construction example. That is, Fig. 10 (a) shows a Phillips screw 30 composed of a pair of straight grooves 31a and 31b at the center of the swollen ruthenium 30a. However, the Phillips screw 30A of this embodiment is configured such that the front end straight line groove 31a forms a vertical end wall portion 35a * with a predetermined depth at the end line portion thereof, and a lower edge portion extending from the vertical end wall portion 35a in a substantially horizontal direction is provided. The segment portion 32b ', next, each inclined groove portion 32c is formed from the segment portion 32b' pointing to the center of the screw neck portion, and at the same time, a substantially conical bottom surface 34 is formed at the bottom thereof. In addition, the aforementioned another straight groove 31b is formed by a structure extending to form a horizontal groove portion, and the horizontal groove portion has a width which fully abuts against the blade portion of the flat bit. Therefore, the driving drill 50 of the present invention can be preferably used for the positive and negative screws 30A thus constituted. Fig. 10 (b) shows a modified example of the aforementioned positive and negative screws 30A. In this case, since it corresponds to the cutting edge portion 52 of the driving drill 50 described above, grooves 33a ', 33b' are formed in one straight groove and the other straight groove 31b of the positive and negative screws 30A, respectively, and the grooves are widened gradually. . With this configuration, when the cutting edge portion 52 of the driving drill 50 is fitted into the bit fitting groove of the positive and negative screws 30A, the screw k shown in FIGS. 8 (a) and (b) of the aforementioned solid example 4 can be obtained. The situation has exactly the same effect and effect. Example 7 (Screw Structure Example 5) This paper size is in accordance with China National Standard (CNS) A4 specification (2〗 0 X 297 mm) -24-------------- install --- ----- Order -------- • Line (please read the note on the back t '## w write this page) A7 _B7_V. Description of the invention (22) The first one of the picture (a ) And (b) show the 10th (a) and (b) snails shown in the previous example 6 and the negative snails are shown positively and the ditch line is straight 1— the vertical A is free 30 degrees. . In the example, the positive person changed the shape of the cypress part to the edge of the middle one. Another example 32 was also the actual OA inlay; the head was drilled and shown in the place. OH 3 Figure 1 The straight large surface was cut into the concave side In the example, the fifth part of the actual description, such as by borrowing 9 because of the oncomelania snail, the five cases of the wall of the front part and the formation of the grooved joint head κ are the same phase. ο 3 Ruthenium screw has a negative positive effect of 31 / and the same phase used is completely completed. In this example, it is practically stated that the previous M is better than the limit, and it is better than the example M plus -I 丨 I 丨 — — — — — — — — — _ 丨 I (Please read the notes and notes on the back ΐ'Ι? Write this page first) Also,, of course, when it is used, or if it has a pot, it is also a fcc fee The book can be stated in the first instance, and the enclosing speech can be modeled, while the gods can be exemplars, refined, made, and clearly structured. They can be used as examples of the proper nails of the books. Know more about the various kinds of facilities that can be counted in the law. They are based on the snails and the snails. Usually, Tongda's wall-shaped end is straight and the end of the neck is large and the nail depth of the neck is fixed to the edge of the lower part of the preform. Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 1 Ziwuluyuan, the end of the wall is straight and the flat screw groove with a vertical blade is flat on the bottom, and the blade is flat. The core of the flat part nails along the edge of the screw. The end is straight and the end is straight down. It advances to the large part, the part is shaped into the bottom, the mask is embedded, the part is rounded, and the angle is oblique. (Embedded 5 heads and 4 praises) 铧 11 and the end of the large front with a drill Hll-, the surface pass flat in the water, hereby borrowed the phase, the formation of the surface of the face before the full spin without drilling completely, passed down to make love That's the face. The head fit image II recessed screw is slip-resistant and solid when the screw is threaded, and the end face can be replaced by the front surface or the surface. The damage from flat to flat blades will be changed. This paper applies the Chinese national standard (CNS) ) A4 size (210 X 297 mm) 25 V. Description of the invention (23) In addition, when the front end is flat, the drill head is brought into contact with the head of the screw at the same time, and at the same time, it gradually widens. The groove is small, especially the disengagement invention of the right-angled moving drill. The driving blade and the groove formed in the flat head are easily and quickly worn. For the driving drill in the screw shape, the drill and screw are opened before the screw. In order to achieve the flatness of the driving drill and the drill driving drill, by abutting the small acute angles adjacent to each other, the phenomenon achieves the combination of the screws A7 and B7 nails. The end face is formed with a conical protrusion, so the contact can become a point or even the minimum of the line. The position of this central part is consistent, which reduces the correct combination with the screw. The front end of the blade part forms a gradually widened side wall head. The gap between the side wall parts and the mating surface of the ruthenium ruthenium mating groove in the fitting groove of the side wall head becomes the opposite side wall opening angle of the groove. The setting can surely prevent the screw screwing operation. Get balanced torque transmission. Read the note on the back I Binding Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 26